Automatic regulating-valve



A. B. JOHNSON.

AUTOMATIC REGULATING VALVE.

APPLICATION FILED MAY 20, T919.

Patented Oct. 4, 1921.

2 SHEETS-SHEET l.

UNITED STATESY 'PATENT OFFICE.

.ARTHUR as. JOHNSON, .or 'ria-n Vmvr'iusn STATES NAVY.

AUTOMATIC meULA'rmG-VALVE.

ToaZZ whom-'it may concern:

lBe it knownthat l, ARTHUR B. JOHNSON, a citizen of the United States, ensign in the United States Navy, have invented ycertain new and useful Improvements in Automatic Regulating-Valves, .of Which the fol# lowing isa specification.

This invention relates vto automatic regulatingY valves lof that type which are employed in hot Water or steam heatmg systems. l

One Iobject of `'the Iinvention .is yto y'provide a 'valve of this class which may be readily and conveniently, installed, which will require lno adjustment orriattention yafter its installation, and Which will perform its functions Yin a highly efficient manner.

Another object of Ithe invention is Vto1so construct the valve that it kmay' be installed in lany desired position 'without impairing its efiicienc'y. i

The valve yembodying the present invention depends for its operation upon the eX- pansion vof a kvfluid which vacts upon 'a member of lthe valve to close the said valve, Aand another object lof the 'invention fisV to provide the said vmember with a'safety vent Wherebyincreased pressure resulting Vfrom abnormal expansionof theifluidfwill be automatically relieved.

lAnother object ofthe invention is to r0- vide the container for 'the expa'nsible uid with a filling means designed to prevent the said member being completely filled with vthe jiiuid. i 'Y A- further Object of `the invention is to provide means, whereby Vwhen the :valve is i installed in ,-ahorizontal position and any abnormally high pressure vis'createdfthe disy charge ofall of the 'Huid or its vapor by Way of the vent above lmentioned Will be Y' prevented so that the Akvalve Will lnever become inoperative onthis account.

' "In the accompanying drawings: Y Figure il isa side elevation .of `the valve embodying A'the `present invention; Y vFig.' '2 'is a'vertical transverse View on the line.` 2 2 of 11i;v

"Fig Bis avertical lonoitudinal sectional view "onthe Aline V3--3 of 2;

Figq zis aperspeotive -vieW of the valve proper and its asso'eiated parts;

Fig. 5 yis va vertical vsectional view illustrating the application of theinvent-io'n toa steam trap.v

In the drawings the numeral 1 indicates sectional VSpecification of Letters kPatent.

' is to control the closing of the-valve.

an inflow pipe at lone endas 'at 2 for the 'radiators- Near `its first mentioned end thev pipe vl is increased in diameter vto form a valve 4case 4 vand this casing is Aformed with upper and ylower valve seats S5 and 6, respectively, located 'in axialfalinem'entv and 'deinlng openings lthrough .which the steam or hot Water, yas the -case may "be, may ass from-'one end 'o'f the pipe tothe other. y he seat' is `of greater diameter 'than -the seat 6 4anda double valve is* rovided comprising upper-and Llovverheads 'and 8, respectively, connected-byV astem 9. These .heads are ldesigned to seat respectively upon the seats I5 and -6 jbeing 'suitably spaced so as to seat simultaneously and, of course, to open simul# taneousl-y (when the valve is" moved "up- Wardly. Suitable Wings "1() and 11 Aare proL vided Yupon the underA sides of :the heads 7 and 8 respectively, and engage-in the openings ldefined by the valve seats `and serve to n Patent-ed Oct. 4, 1921.

Application 'filed llIay20, 1919. Serial 110.298,44?. I

drawings. The heads? and Sare, of course,

ofproper diameter to vfit ,the respective seats and, of course, the head 7'ipresents agreater surface area to vthe pressure of the steam or hot Water than does the head 8 vand as the pressure is against Vthe under side of the head :7 and lagainst the upper side of the head `8 the 'valve will have a normal tendenoy to openand remain in Vopen position as'shown in 'Figs-2 and 3.

The numeral l2 indicates an'outflow pipe for the steam` or hot Water and this pipe is formed at one end as indicated ib' A"the numeral 13 forthe connection of^t e return pipe of the "heating-system and at vrits other end, asindicated by'thejnumera'l 14 .for the constitutesthe expansion chamber in which is contained the fluid thev expansion of which This 'iuidma'y Sbe 'any of the Vvvell Yknovv'n' iuids employed for thel'purpose such'for example as ialcohol, ether, and .the like and the same is-tobe'introduced into the jacketl5 through the jacket 15. In filling thel jacket, the closure plugs for the two spouts at one Aend of `the jacket are removed and they iuid is poured into the jacket through one spout, air escaping through the other. However,

` due to the provision of the tubes 18, the

jacket cannot be completely filled and 'thus the presence of a space for the expansion of the fluid into vapor` is provided with ceri tainty in filling the jacket.

. connected at its upper end to the lower end '.Thejacket 15 is rovidedwith a branch pipe 19y which, in t e positionof the valve shown in the drawings, leads downwardly and is threaded asV at 2O into the upper end of the valve casing 4 in the pipe 1. A piston head21 rovidedfwith. pistonrings or other fluid-tight devices 22 is slidably mounted inthe branch 19 which is smoothly bored for this purpose. A short rod 23. is

'j of theA piston 21 and at its lower end is threaded into the head 7 of the lvalve proper. Thus when the piston is moved downwardly or in the direction of the valve, the valve l will. be moved to its seat and thus closed.

The branch 19, of course, communicates with.

the interiorlof the jacket 15 and this communication may be established merely by the provisionL of yan. opening of ,a suitable f .I size in the underside of the said `j acket 15.

It is preferable, however, that a short tube 24 be tapped or otherwise fitted into an opening in thel under side of the said jacket so as to ycommunicate with the interior'of the branch 19 and with the said jacket, the tube being, as stated, relatively short and terminating, for example, just below the under side Vof the pipe 12. Another tube 25 is also tapped into the under side-of the jacket 15 but this tube is longer and leads, for example, u into the jacket beside the pipe 12. i In or er that extraordinarilyhigh pressure may be relieved in the event. abnormal expansion of the fluid` in the jacket- 15 oc- .I curs, the piston head 21 is formed witha -normally held to this seatfby means of,y 'aV spring 29v which-bears at one `endagainst vent passage .26 opening throughtheopposite ends of the pistonjand provided between` its ends with a valve vseat 27. A ball valve 28 is arranged. within the vent and is the, valve and atits other endv against an adjustingscrew 3() which is adjustably lit-- tedinto the lower end of the ventand is provided with a vent passage `31 communicatingwith the vent 'passage 26. It will now be *understoodl that ,upon the creation of an exceptionally high or dangerous pressure, the expansible fluid will pass the valve 28 and through the vent passage 26 into the .pipe 1 thus relieving the pressure within the jacket. Y

Fig. 5vof the drawings illustrates the invention embodied in a steamV trap and in this embodiment the structure is substantially the same as heretofore described, corresponding parts being indicatedV by like reference numerals. In. this embodiment, however, they ends of the pipes 1 and 12 corresponding to the ends 2 and 14 heretofore i* described Vare turned Vlaterally inl opposite directions as indicated respectively by the numerals 32 and 83 for connection respectively with a discharge pipe 34 and the steam f 36 extends and establishes communication between the ends 82 .andv33 of the pipes 1 and12 and interposed in the said pipe-6,

is a-by-pass cut-off valve 37.

Vpipe 35..V Also in this embodiment a pipe f Having thus described the invention, what is claimed as new isz-j Y Y w 1. In a. regulating valve, a fluid inflow pipe, a fluid-outflow pipe, a jacket upon-one of said pipes for containingV a heat expansiblefluid, a branch establishing rigid connec- :w

tion-between and communicationwith the other pipe andthe jacket, ai valve in the last-mentioned pipe` for controlling the flow through the pipes, afluidpressure means in the said branchfor controlling the valve andV l actuated through the expansion of the Afluid. in the saidjacketj, anda valvedvent in the said means. ,l v l 1 2. In a regulating. valve, a fluid inflow pipe, a fluid outlet pipe, a-jacket surrounding one .of said pipes-for containing a heat expansible fluid, a plurality of filling'spouts in the ends of the` jacket, a tube extending inwardly fromfeacli spoilt into the jacket, Y

a valvein one of the the flow through both pipes, and a fluid pressure means for `controllingrthe v alve Aand actuated through 'the expansion of theV fluid in the saidjacket 3. In a `regulating valve, a fluid inflow pipe, ya fluid outflow pipe, a jacket upon one of said pipesfor containing aY heat expansible' fluid, a branch pipe extending'between ipes for controlling ,Y

1'i57` and communicating with the other 'of said" pipes and the jacket, a valve for controlling j the flow throughthe latter pipe, a fluidfpressuremeans in-said branch for controlling the valve andactuated through the expansion of' the fiuidjin the `said jacket, a pipe extending andestablishing 'communication between the intake end of the inflow pipe and the outletend of the Voutflow pipe, and a cut-offby-pass valve interposed in said connected pipe. l

In testimony whereof I affix my signature. v

ARTHUR n .Jonsson IL. sf] 

